: The central conflict revolves around the demon Lilith's attempt to break 66 seals to release Lucifer from his cage. The angels and the Winchesters must race to prevent these seals from breaking. Major Character Arcs SUPERNATURAL Season 4 Episodes Ranked!
: The season begins four months after the Season 3 finale, with Dean Winchester (Jensen Ackles) clawing his way out of his own grave after being tortured in Hell.
: Dean was "raised from perdition" by an angel of the Lord named Castiel (Misha Collins). This introduced a new cosmic hierarchy, revealing that angels are not always benevolent; many are portrayed as rigid, "asshole" soldiers following divine orders.